2 files changed, 52 insertions, 0 deletions
diff --git a/avr-blinkled-atmega328p/Makefile b/avr-blinkled-atmega328p/Makefile
new file mode 100644
index 0000000..864e2ec
--- /dev/null
+++ b/avr-blinkled-atmega328p/Makefile
@@ -0,0 +1,35 @@
+# settings for arduino uno
+DEVICE     = atmega328p
+CLOCK      = 16000000
+
+# buspirate programmer
+PORT=/dev/serial/by-id/usb-FTDI_FT232R_USB_UART_A400XJSH-if00-port0
+AVRDUDE=avrdude -p $(DEVICE) -c buspirate -P $(PORT)
+
+DEFS    = -DF_CPU=$(CLOCK)UL
+LIBS    = -Wl,--relax,--gc-sections,--print-gc-sections,--entry=main
+LIBS = -Wl,--entry=main,--gc-sections,--rela
+CFLAGS  = -Wall -Werror -pedantic -std=c99
+CFLAGS += -Os -funsigned-bitfields -fpack-struct -fshort-enums
+CFLAGS += -mmcu=$(DEVICE) $(DEFS)
+#LDFLAGS = $(LIBS)
+
+all: main.hex size
+
+main.hex: main.c
+	avr-gcc -o main.elf $? $(CFLAGS) $(LDFLAGS)
+	avr-objcopy -j .text -j .data -O ihex main.elf main.hex
+
+f: flash
+flash: all
+	$(AVRDUDE) -U flash:w:main.hex:i
+
+clean:
+	rm -f *.o *.elf *.hex
+
+size:
+	avr-size --mcu=$(DEVICE) -t -A main.elf
+	avr-size --mcu=$(DEVICE) -C main.elf
+	avr-nm --size-sort main.elf
+
+
diff --git a/avr-blinkled-atmega328p/main.c b/avr-blinkled-atmega328p/main.c
new file mode 100644
index 0000000..8d9e288
--- /dev/null
+++ b/avr-blinkled-atmega328p/main.c
@@ -0,0 +1,17 @@
+#include <avr/io.h>
+#include <util/delay.h>
+
+int main(void)
+{
+    /* PB4 output */
+    DDRD  |=  _BV(PB4);
+    PORTB &= ~_BV(PB4);
+
+    for (;;)
+    {
+        _delay_ms(1000);
+        PORTB ^= _BV(PB4);
+    }
+
+    return 0;
+}